Chang-jiang Wang

Title: Innovations by Chang-jiang Wang

Introduction

Chang-jiang Wang is a notable inventor based in Troy, MI, who has made significant contributions to the field of electric drive systems. With a total of five patents to his name, Wang's work focuses on enhancing the performance and efficiency of electric machines.

Latest Patents

One of Wang's latest patents is titled "Method of current sensor related torque error estimation for IPMSM e-drive system." This innovative method addresses the estimation of torque control error in electric machines by considering the effects of current sensor error characteristics. The system allows for the determination of the maximum sensor error that can be tolerated without leading to unacceptable torque errors. By utilizing sensor and machine characteristics, the method can identify current sensing errors, current control errors, and torque control errors. This approach facilitates the use of lower-cost sensors in current-feedback controlled electric drive systems without compromising performance. Another significant patent is "Electric motor position signal synchronized operation." This patent describes an embedded controller within a vehicle electronics subsystem that communicates with an electric machine. The controller processes input signals from the electric machine and generates digital output signals, including Hall position and rotor position signals. The processor embedded in the controller executes computations to issue control commands to the electric machine based on torque commands.

Career Highlights

Chang-jiang Wang is currently employed at Ford Global Technologies, LLC, where he continues to innovate in the field of electric drive systems. His work has contributed to advancements in vehicle diagnostics and torque error compensation, showcasing his commitment to improving electric machine performance.

Collaborations

Wang has collaborated with notable colleagues, including Michael W Degner and William Reynolds, further enhancing the innovative environment at Ford Global Technologies.

Conclusion

Chang-jiang Wang's contributions to electric drive systems through his patents demonstrate his expertise and commitment to innovation. His work not only advances technology but also paves the way for more efficient and cost-effective solutions in the automotive industry.